Then one night, he shoots down Toothless, a Night Fury — the rarest and most feared dragon of all. But standing over the injured dragon, Hiccup can’t bring himself to kill it. Instead, he sets it free. It’s his first step in learning to give someone a chance — to let them prove themselves before you judge them.

Toothless can’t fly — his tail is damaged — so Hiccup goes back to him in secret, day after day. He brings fish. He watches. And slowly, he realises that dragons have been misunderstood — judged by old ideas that nobody ever stopped to question. Toothless isn’t simply dangerous. He’s clever, playful and careful.

And this is how you earn someone’s trust — not with words, but with the same small actions, repeated until they mean something. Toothless trusts Hiccup because Hiccup keeps coming back, and keeps choosing not to hurt him.

Using what he’s learned from Toothless, Hiccup starts doing well in training — not because he’s strong, but because he understands dragons well enough to calm them. Without meaning to, he starts to break the mould — to do things differently from everyone who came before him.

Astrid follows Hiccup and discovers his secret. At first, she’s furious. But once she meets Toothless herself, she begins to come around — to change her opinion, slowly, because of what she’s seen with her own eyes. One flight on Toothless’s back does more than any argument ever could.

What Astrid sees is an unlikely friendship — a close bond between two who, by every rule they’ve grown up with, should never have been friends at all.

And rather than tell anyone, she chooses to keep Hiccup’s secret — to protect something you’ve been trusted with, even when it puts you at risk.

Hiccup still has something harder to learn: how to let his guard down — to stop protecting himself and be honest about who he really is, especially with his father.

Stoick has spent the whole film seeing his son as a disappointment. Eventually, events force him to see Hiccup in a new light — to understand someone differently, because the old view no longer makes sense.

What I can tell you is that when the real danger comes, Hiccup isn’t alone. The other young riders, Astrid included, choose to have his back — to stand by someone exactly when they need it most. And the film earns its ending, because both sides finally put their differences aside — they let go of an old argument for the sake of something bigger.

The film was a major commercial success, earning well over $490 million worldwide against a budget of around $165 million. Critics were unusually united about it: the praise went to the sweeping, exhilarating flight sequences, to John Powell’s rousing score, and to a friendship that carries real emotional weight — while the few doubts went to a familiar coming-of-age shape underneath all of it.